Structured Query Language (SQL) is a specialized programming language originally developed by IBM in the early 1970s. The language is designed specifically for accessing and manipulating data held in a relational database management system (RDBMS).
SQL is one of the easiest languages to learn and use. The focus of this article is to select some of the finest SQL books which help database administrators quickly get up to speed with this special-purpose programming language. All of the books are available to download for free.